The antioxidant vitamin status, lipid oxidation and color stability of
beef from grazing cattle were negatively affected during retail display
conditions, especially when cattle were supplemented with corn grain
(0.7% BW) alone or with corn grain plus a high level of flaxseed
(0.250% BW). In contrast, no negative effects were observed on beef antioxidant
status or oxidative stability during retail display when a low
level of flaxseed (0.125%) was added to the corn grain supplemented
to grazing cattle. Negative effects on oxidative stability observed during
retail display conditions were accentuated when extending vacuumpackage
beef aging period.